Tobi, I changed coding to: Public Sub RunButton_Click() ... StopListBox.Clear SteckersListBox.Clear ReflectorListBox.Clear RotorsListBox.Clear DetailTextArea.Clear Wait ... aExecParameters = ["/opt/Enigma/turing_bombe_all_wheels", sMenuPath] 'sMenuPath points to an input file pturing_bombe = Exec aExecParameters Wait For Read As "TuringBombeResultsDetail" ... PopulateListBoxesFromDetailsTextArea ... End
Public Sub TuringBombeResultsDetail_Read() Dim sLine As String Line Input #Last, sLine Print "SO=" & sLine DetailTextArea.Text &= sLine & "\n" Wait End It still did not clear the displayed contents of those controls. I clicked the button once (i.e. when the contents were already clear) and it populated the above controls as expected. I clicked the button again but it did not clear the DetailTextArea or the ListBoxes immediately. The CL program took a few seconds to run and interestingly when it finished it did not add to the controls' contents (i.e. it cleared them before populating them again). John On 02/03/15 19:25, Tobias Boege wrote: > On Mon, 02 Mar 2015, John Rose wrote: >> I have a Click event on a Button. At runtime, clicking the button should >> cause clearing of the data from a TextArea & some ListBoxes. There's no >> way this 'clearance' cannot be executed as the Exec of a CL program >> (which definitely happens because it populates these controls) soon >> follows it. However, it doesn't seem to do so. Clearance coding: >> With StopListBox >> .Clear >> .Refresh >> End With >> With SteckersListBox >> .Clear >> .Refresh >> End With >> With ReflectorListBox >> .Clear >> .Refresh >> End With >> With RotorsListBox >> .Clear >> .Refresh >> End With >> With DetailTextArea >> .Clear >> .Refresh >> End With >> >> Is the above the correct method of causing the clearance to happen on >> the screen immediately? >> > That last word is important. Controls are refreshed during the event loop > which you can think of as the pause mode of the interpreter: it enters it > when there is no Gambas code to execute at present. The interpreter sits > there waiting for events to happen or does maintenance like redrawing the > GUI. > > You can force the interpreter to look at pending events (and to redraw the > controls by the way!) by using the Wait instruction without argument. > Calling Refresh() is not necessary here which saves you 3 lines per Clear() > call. > > Regards, > Tobi > ------------------------------------------------------------------------------ Dive into the World of Parallel Programming The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ _______________________________________________ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
